Retractor for mammary artery bypass surgery



FIG. 1 is a perspective view of a retractor for mammary artery bypasssurgery showing our new design, the broken line showing of the chestcavity is for illustrative purposes only and forms no part of theclaimed design;

FIG. 2 is a top view thereof;

FIG. 3 is a is a bottom view thereof;

FIG. 4 is a is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a front view thereof.

The ornamental design for a retractor for mammary artery bypass surgery, as shown and described. 